Office chair arm



FIG. 1 is a perspective view of an office chair arm according to my new deisgn;

FIG. 2 is an outside elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is an inside elevational view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a top view thereof. 

The ornamental design for office chair arm, as shown and described. 